Tips to Fix Nighthawk Blinking Red Light.

The Nighthawk blinking red light issue occurs when there’s a problem with the router’s firmware. This issue also occurs when the firmware update is interrupted.
In this case, you can try resetting the router to fix the issues with the firmware. All you need to do is press and hold the reset button on the router. After 7 seconds, you can release the button and the reset will be successful.
https://nighthawklog.net/how-t....o-fix-nighthawk-rout